Hi all,
I have a question about the Expires header in an Invite. If a UA receives an
invite (in my particular case the UA is an IVR application) and the UA wants
to start sending and receiving voice without sending a 200 OK it can do so
by responding with say 180 or 183 that includes the SDP answer to the offer
in the Invite. Now if the incoming invite included an Expires header with
value 25, and the UA wants to keep the "early media" for a longer time
(still with no 200 OK "answer"), is there something the UA can do? I checked
the RFC and to me it looks like the Expires is setting how long time the
offered session is available, and there has to be a final response within
that time. Maybe I did misunderstand the RFC or is there some other way to
only use provisional response? Any help is appreciated
Regards,
// Andreas
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